Buckle



FIG. 1 is a top plan view of a buckle showing my new design;

FIG. 2 is a bottom plan thereof;

FIG. 3 is a side-elevational view thereof;

FIG. 4 is a front-elevational view thereof;

FIG. 5 is a rear-elevational view thereof;

FIG. 6 is a top perspective view thereof; and

FIG. 7 is a bottom perspective view thereof.

The side opposite to that shown in FIG. 3 is the mirror thereof. 

The ornamental design for a buckle, as shown and described. 